Portable railway construction clearance detection device

Abstract

This utility model relates to the field of railway inspection technology, specifically disclosing a portable railway construction clearance detection device. It includes two symmetrically distributed limiting plates and an extension plate installed outside the two limiting plates, as well as a movable plate slidably connected to the inner wall of the limiting plates. The extension plate is equipped with an adjustment structure for fixing the posture of the limiting plates and the extension plate, while the movable plate is equipped with a fixing structure for fixing its own position. This portable railway construction clearance detection device, through the cooperation of the adjustment structure and the fixing structure, compresses a semi-circular block, causing a spring to be compressed and moving the semi-circular block downwards. At this time, the movable plate can be pulled to adjust the overall length of the device. When the semi-circular block encounters a limiting hole, it resets under the elastic force of the spring and engages with the limiting hole to fix the movable plate. The insertion rod, screw, and locking ring can be folded when not in use to reduce the footprint, effectively solving the problem of poor portability of existing devices.

Description

Technical Field

[0001] This utility model relates to the field of railway inspection technology, specifically a portable railway construction clearance inspection device. Background Technology

[0002] Railway construction clearance refers to the extreme cross-sectional profile perpendicular to the centerline of the railway line. Its core function is to define a "safe passage space" for locomotives, rolling stock, and loaded goods, ensuring that they do not scrape or collide with adjacent facilities and equipment such as tunnel walls, platform edges, and signals. It is a key element in ensuring railway transportation safety. Currently, the measurement of railway construction clearance is mainly completed by staff operating specialized testing equipment.

[0003] Current inspection devices mainly cover two types: intelligent robot inspection and manual trolley inspection. In the application scenario of manual trolley inspection, the existing trolleys occupy a large area, which makes it impossible to effectively reduce the size of the trolley to save storage space when not in use, greatly reducing its portability. This restricts the staff from easily carrying it to various railway construction clearance inspection scenarios in different areas. Therefore, we propose a portable railway construction clearance inspection device. Utility Model Content

[0004] The purpose of this utility model is to provide a portable railway construction clearance detection device to solve the problem mentioned in the background art that the existing trolleys occupy a large area, which makes it impossible to effectively reduce the size of the trolleys to save storage space when not in use, greatly reducing portability and restricting the staff from conveniently carrying them to various railway construction clearance detection scenarios in different areas for operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable railway construction clearance detection device, comprising two symmetrically distributed limiting plates and an extension plate installed outside the two limiting plates, and a movable plate slidably connected to the inner wall of the limiting plates. The extension plate is equipped with an adjustment structure for fixing the posture of the limiting plates and the extension plate, and the movable plate is equipped with a fixing structure for fixing its own position.

[0006] The fixing structure includes a circular hole in the inner wall of the movable plate, a spring installed in the circular hole, and a semi-circular block installed on top of the spring.

[0007] The spring has a hydraulic buffer rod installed in the middle to limit its excessive deformation, and the top of the two limiting plates is provided with limiting holes that are adapted to the semicircular blocks and are distributed in a linear array.

[0008] The adjustment structure includes a through hole in the inner wall of the extension plate and a rod inserted into the through hole, as well as a screw installed on the top of the rod. A locking ring is externally locked to the screw.

[0009] One of the extension plates has a groove on its inner wall, and a lead screw is rotatably connected inside the groove.

[0010] The lead screw has an external threaded connection to a movable block, which is slidably connected to the inner wall of the groove and fixedly connected to an abutment block that abuts against the locking ring to restrict its movement.

[0011] The inner wall of the limiting plate is provided with a limiting groove that is adapted to the sliding of the movable plate, and the outer side of the movable plate is equipped with guide insulating wheels for moving on the slide rail.

[0012] This utility model has at least the following beneficial effects:

[0013] By adjusting the structure and fixing the structure together, the semicircular block is squeezed, causing the spring to be squeezed and the semicircular block to move downward. At this time, the movable plate can be pulled to adjust the overall length of the device. When the semicircular block encounters the limiting hole, it resets under the elastic force of the spring and locks with the limiting hole to fix the movable plate. The insertion rod, screw and locking ring can be folded when not in use to reduce the footprint, effectively solving the problem of poor portability of the existing device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the limiting plate, extension plate, and adjustment structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the present utility model. Figure 1 Top view;

[0017] Figure 4 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0019] Figure 6 This is a schematic diagram of the overall structure of the present utility model. Figure 2 Top view.

[0020] In the diagram: 1. Limiting plate; 2. Extension plate; 3. Movable plate; 4. Adjustment structure; 41. Insert rod; 42. Screw; 43. Locking ring; 44. Lead screw; 45. Movable block; 5. Fixing structure; 51. Spring; 52. Semicircular block; 53. Limiting hole; 6. Guide insulating wheel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 6 This utility model provides a technical solution: a portable railway construction clearance detection device, comprising two symmetrically distributed limiting plates 1 and an extension plate 2 installed outside the two limiting plates 1, and a movable plate 3 slidably connected to the inner wall of the limiting plates 1. The extension plate 2 is equipped with an adjustment structure 4 for fixing the posture of the limiting plates 1 and the extension plate 2, and the movable plate 3 is equipped with a fixing structure 5 for fixing its own position.

[0023] The above-mentioned solution addresses the problems of large footprint, poor portability, and insufficient adaptability in existing technologies due to the inability to flexibly adjust to the differences in track gauge between standardized and old railway tracks in my country, making it difficult to meet the testing needs of different tracks. Therefore, by cooperating with the adjusting structure 4 and the fixing structure 5, the semicircular block 52 is compressed, causing the spring 51 to be compressed and moving the semicircular block 52 downward. At this time, the movable plate 3 can be pulled to adjust the overall length of the device. When the semicircular block 52 encounters the limiting hole 53, it resets under the elastic force of the spring 51 and engages with the limiting hole 53 to fix the movable plate 3. The insertion rod 41, screw 42, and locking ring 43 can be folded when not in use to reduce the footprint. This effectively solves the problem of poor portability of existing devices. Specifically, the two extension plates 2 can be rotated and folded through the insertion rod 41. When folded to the state shown in the attached drawing, the two extension plates 2 can be locked and fixed through the threaded connection between the locking ring 43 and the screw 42, thereby achieving a fixed posture effect after folding. At the same time, in order to avoid the locking ring 43 from shifting due to vibration or other factors and affecting the stability of the fixation, the screw 44 can be rotated to drive the movable block 45 to slide along the slide groove, thereby causing the abutment block fixedly connected to the movable block 45 to move synchronously until the abutment block and the locking ring 43 are tightly abutted, thus forming a double fixation to ensure that the two extension plates 2 remain stable in the folded state and will not loosen due to external interference.

[0024] The fixing structure 5 includes a circular hole in the inner wall of the movable plate 3, a spring 51 installed in the circular hole, and a semi-circular block 52 installed on top of the spring 51. A hydraulic buffer rod is installed in the middle of the spring 51 to limit its excessive deformation. To adjust the position of the movable plate 3, a vertically downward pressure needs to be applied. During the sliding process of the movable plate 3 along the limiting groove, it is necessary to ensure that the direction of movement of the movable plate 3 is consistent with the direction of the limiting groove to avoid jamming or displacement. When the movable plate 3 stops moving, the semi-circular block 52 will automatically pop out under the elastic force of the spring 51. Since the limiting holes 53 on the limiting plate 1 are linearly arrayed and matched with the semi-circular block 52, the spring 51 will push the semi-circular block 52 into the corresponding limiting hole 53, thereby achieving initial fixation of the movable plate 3. During the process of the spring 51 pushing the semi-circular block 52 into the limiting hole 53, when the spring 51 is subjected to greater pressure and deforms, the hydraulic buffer rod will limit the excessive deformation of the spring 51 to prevent... Spring 51 loses its elasticity due to long-term excessive compression or stretching, thus ensuring that spring 51 can continuously and stably provide elastic force, so that semicircular block 52 is always tightly locked in limiting hole 53. The top of both limiting plates 1 are provided with limiting holes 53 that are adapted to semicircular block 52 and are arranged in a linear array. The adjustment structure 4 includes a through hole opened in the inner wall of extension plate 2 and a plug rod 41 inserted into the through hole, and a screw 42 installed on the top of plug rod 41. A locking ring 43 is locked to the outside of screw rod 42. A sliding groove is opened in the inner wall of one of the extension plates 2, and a lead screw 44 is rotatably connected inside the sliding groove. A movable block 45 is threaded to the outside of lead screw 44. The movable block 45 is slidably connected to the inner wall of the sliding groove and fixedly connected to an abutment block that abuts against the locking ring 43 to limit its movement. The inner wall of the limiting plate 1 is provided with a limiting groove that is slidably adapted to the movable plate 3, and the outside of the movable plate 3 is equipped with guide insulating wheels 6 for moving on the slide rail.

[0025] Using the above scheme: When the movable plate 3 slides along the limiting groove of the limiting plate 1, the semicircular block 52 is always in contact with the inner wall of the limiting plate 1 due to the elastic force of the spring 51. When it slides to the position, the semicircular block 52 will automatically engage with the corresponding limiting hole 53, realizing the quick locking of the movable plate 3 and the limiting plate 1. The overall length of the device can be adjusted without additional tools, and the length can be shortened when carrying, reducing the footprint. At the same time, the linearly arrayed limiting holes 53 provide multiple adjustment options to adapt to the track detection needs of different widths, such as the difference in track gauge between standardized tracks and old tracks. When not in use, the extension plate 2 can be folded to fit the limiting plate 1. The device is designed to be folded and unfolded, significantly reducing its overall size. When in use, the extension plate 2 is unfolded and locked in place by the threaded connection between the locking ring 43 and the screw 42. This ensures that the extension plate 2 remains horizontal after unfolding, preventing measurement accuracy from being affected by the shaking of the extension plate 2 during testing. Rotating the lead screw 44 can drive the movable block 45 to slide along the slide groove, thereby causing the abutment block to move synchronously and abut tightly against the locking ring 43. The abutment block can restrict the circumferential rotation and axial movement of the locking ring 43. Even when the rail vibrates or the device is manually pushed, the locking ring 43 will not shift, ensuring that the extension plate 2 remains stable in the folded or unfolded state.

[0026] Work steps:

[0027] First, before use, adjust the length of the device according to the width of the track to be tested. Apply vertical downward pressure to the semicircular block 52, squeeze the spring 51 to make it move the semicircular block 52 downward. Then pull the movable plate 3 along the limiting groove, keeping the direction of movement consistent with the limiting groove to prevent jamming. After adjusting to the specified length, release the semicircular block 52. The spring 51 will push the semicircular block 52 back to its original position under the elastic force, and lock it into the corresponding limiting hole 53 to fix the movable plate 3. During testing, the device can be pushed along the rail with the help of the guide insulating wheel 6 outside the movable plate 3. After use, rotate the screw 44 in the opposite direction to make the abutment block disengage from the locking ring 43, release the locking ring 43 and fold the extension plate 2 around the insertion rod 41. Then shorten the movable plate 3 by reversing the length adjustment operation and drive the two extension plates 2 as shown in the figure. Then rotate the locking ring 43 to lock it, and drive the screw 44 to drive the abutment block to abut against the locking ring 43 to fix the folded posture of the device, thereby reducing the size of the device for easy carrying.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable railway construction clearance detection device, characterized in that: It includes two symmetrically distributed limiting plates and an extension plate installed outside the two limiting plates, as well as a movable plate slidably connected to the inner wall of the limiting plates. The extension plate is equipped with an adjustment structure for fixing the posture of the limiting plates and the extension plate, and the movable plate is equipped with a fixing structure for fixing its own position.

2. The portable railway construction clearance detection device according to claim 1, characterized in that: The fixing structure includes a circular hole in the inner wall of the movable plate and a spring installed in the circular hole, as well as a semi-circular block installed on the top of the spring.

3. The portable railway construction clearance detection device according to claim 2, characterized in that: A hydraulic buffer rod is installed in the middle of the spring to limit its excessive deformation, and the top of the two limiting plates are provided with limiting holes that are adapted to the semicircular blocks and are distributed in a linear array.

4. The portable railway construction clearance detection device according to claim 1, characterized in that: The adjustment structure includes a through hole in the inner wall of the extension plate and a rod inserted into the through hole, as well as a screw installed on the top of the rod. A locking ring is externally locked to the screw.

5. The portable railway construction clearance detection device according to claim 4, characterized in that: One of the extension plates has a groove on its inner wall, and a lead screw is rotatably connected inside the groove.

6. The portable railway construction clearance detection device according to claim 5, characterized in that: The lead screw is externally threaded with a movable block, which is slidably connected to the inner wall of the groove and fixedly connected with an abutment block that abuts against the locking ring to restrict its movement.

7. The portable railway construction clearance detection device according to claim 1, characterized in that: The inner wall of the limiting plate is provided with a limiting groove that is adapted to the sliding of the movable plate, and the outer side of the movable plate is equipped with guide insulating wheels for moving on the slide rail.

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